package Example15_17;

class Animal {
    void shout() {
        System.out.println("喵喵......");
    }
}

class Dog extends Animal {
    public void shout() {
        System.out.println("汪汪汪......");
    }

    public void eat() {
        System.out.println("吃骨头");
    }
}

public class Example15 {
    public static void main(String[] args) {
        Dog dog = new Dog();
        Animal an = dog;
        an.shout();
//        an.eat();
    }
}
